C.4.13 Random Number Generator Changes

The global function csFastRandFloat() has been retired. In its stead is
the new instantiable class ‘csRandomFloatGen’, which is modeled after the
‘csRandomGen’ class. Unlike the old csFastRandFloat() function
which was shared by all clients, instances of ‘csRandomFloatGen’ can be
controlled and seeded individually, thus making it far more flexible and
useful. (Note that the more general-purpose ‘csRandomGen’ class is also
able to vend floating point numbers.)